feat: 新增应用配置管理模块并实现用户认证处理器，支持环境配置加载和GitHub OAuth。

.env

@@ -78,6 +78,9 @@ WHISPER_MODEL=FunAudioLLM/SenseVoiceSmall
 # 聊天模型（可选，默认 gpt-3.5-turbo，可改为 gpt-4 等）
 CHAT_MODEL=Qwen/Qwen3-8B
 
+# 识图模型 
+OCR_MODEL=deepseek-ai/DeepSeek-OCR
+
 # AI 会话超时时间
 AI_SESSION_TIMEOUT=30m
 

internal/config/config.go

@@ -64,7 +64,7 @@ type Config struct {
 func Load() *Config {
 	cfg := &Config{
 		// Server
-		ServerPort:  getEnv("SERVER_PORT", "8080"),
+		ServerPort:  getEnv("SERVER_PORT", "2612"),
 		Environment: getEnv("ENVIRONMENT", "development"),
 
 		// Data directory
@@ -99,7 +99,7 @@ func Load() *Config {
 		GitHubClientID:     getEnv("GITHUB_CLIENT_ID", ""),
 		GitHubClientSecret: getEnv("GITHUB_CLIENT_SECRET", ""),
 		GitHubRedirectURL:  getEnv("GITHUB_REDIRECT_URL", ""),
-		FrontendURL:        getEnv("FRONTEND_URL", "http://localhost:5173"),
+		FrontendURL:        getEnv("FRONTEND_URL", "http://localhost:2613"),
 
 		// AI (OpenAI compatible)
 		OpenAIAPIKey:     getEnv("OPENAI_API_KEY", ""),

internal/handler/auth_handler.go

@@ -5,9 +5,9 @@ import (
 	"fmt"
 	"net/url"
 
-	"accounting-app/pkg/api"
 	"accounting-app/internal/config"
 	"accounting-app/internal/service"
+	"accounting-app/pkg/api"
 
 	"github.com/gin-gonic/gin"
 )
@@ -181,7 +181,7 @@ func (h *AuthHandler) GitHubCallback(c *gin.Context) {
 		return
 	}
 
-	frontendURL := "http://localhost:5173"
+	frontendURL := "http://localhost:2613"
 	if h.cfg != nil && h.cfg.FrontendURL != "" {
 		frontendURL = h.cfg.FrontendURL
 	}